Orkney Islands · Scotland
Sand mastic for sash & case windows in Lyness, Orkney Islands
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Lyness, backed by a one-year guarantee. Ask us for a quote.
- Gaps where the frame meets the masonry
- Failed mastic on an exposed elevation
- Cement or filler used on old window joints that has cracked
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
How we handle sand mastic in Lyness
Silicone on a period window often looks wrong and isn’t always the right material. Sand mastic gives a finish that matches the age of the house and we can swap the silicone for it. If you are dealing with crumbling sand mastic round a window and open joints round the window box, we can put it right, on period & listed homes, sash and case windows and timber door frames alike.
Mastic can only go onto a dry joint, so outside work in Lyness depends on the weather. Let us know about access to every frame, including any upstairs.
There’s a 12-month guarantee on every job.

- Where
- Lyness (KW16)
- Region
- Orkney Islands
- Guarantee
- One year on every job
- Price
- A clear price before we start
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Quotes for sand mastic in Lyness
Call for a quick quote. What matters most is:
- When we can work, for business premises
- Which sealant suits the joint
- Whether there’s mould to deal with
- How easy the joints are to reach
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
Helping us quote
Before you ask for a quote, have a think about:
- If someone has resealed it before
- Where the property is
- What the problem is, such as mould, gaps, leaks or cracking
- Access, such as stairs, a lift or height
Need a quote? Please send an email to info@mrmastic.co.uk with a few details. We’ll explain what we’d do and give you a clear quote before we start.
Other services in Lyness
Landlords, agents and businesses in Lyness
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can go on one quote.
Common problems we fix in Lyness
Timber swells and shrinks with the weather. The movement cracks the mastic little by little.
Most people get in touch after spotting one of these:
- Modern sealant on a period surround
- Draughty sash windows at the surround
- Cracked mastic round a front door frame
- Failed mastic on an exposed elevation
For jobs in and around Lyness, choosing the right material for each joint is as important as a tidy finish.
What your quote should include
- How long the guarantee is
- What insurance they hold
- When the joint can take water or movement
- Who turns up on the day
When something else is needed
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Decisions on consent for listed homes
- Timber that has rotted
- Sashes that need overhauling
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think.
Surfaces we seal
- Timber door frames
- Sash and case windows
- Brick reveals
- Tenement windows
- Period & listed homes
- Stone surrounds
Sand mastic in Lyness: local notes
Lyness is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic.
In and around Lyness, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
Lyness is about 13 miles south-west of Kirkwall, in the Orkney Islands. Whether you’re in the middle of Lyness or further out, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. Across the Orkney Islands, we cover 51 places, Lyness among them.
We work across KW16 for sand mastic. Being close to the B9048, Lyness is simple for us to get to for sand mastic. Neighbouring places we cover for sand mastic include Longhope (2 miles south), Midland (6 miles north), Hoy (7 miles north-west), Orphir (7 miles north) and Clestrain (7 miles north). Remote and island addresses need a little more planning, so please mention your location when you drop us a line at info@mrmastic.co.uk.
Around Lyness
Other landmarks nearby include Scapa Flow Museum (within half a mile north-east). Green spaces nearby include Binga Fea and Loch of Greenhill.
Keeping the joints in good condition
Looking after new joints is easy, and it makes a real difference:
- Take care around the mastic when scraping paint
- Don’t run silicone over sand mastic
- Get any rot dealt with first
- Check the mastic when you check the paintwork
Keep gutters and sills clear so water runs away from the surround. Water sitting against the mastic shortens its life.
Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.
Lyness questions
Is sand mastic in a coastal place like Lyness any different?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Do you cover smaller places like Lyness?
Yes, we do. We work across all of Scotland, islands included, and smaller places are part of that. Longer journeys are simply planned in advance.
Is it messy?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Can I add another job to the visit?
Yes. Just list everything you need and you will get one quote.
How much does sand mastic cost in Lyness?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. You’ll get a clear quote before work begins.
Can I choose the sealant colour?
Yes. White, clear and grey are common, and other colours are available for many products, and we’ll agree it with you first.
How long does sand mastic take to go off?
It skins over fairly quickly but takes longer to harden fully. We’ll explain what to expect before we leave.
Will there be a smell?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
How the visit works
When we arrive, we look over the joints with you first. Surfaces next to the work are protected before any work begins. Most jobs take a few hours for a single window, longer for several. Outdoor work around Lyness depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- We check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- Mention any sign-in or site rules at work premises
- Try not to wet indoor joints just before the visit
- Tell us about any water getting in
Ask for a quote
For a quote, send an email to info@mrmastic.co.uk with the location and a short description of the problem. We’ll give you a clear quote before any work starts.
